package com.tbzz.mycloud.servicce;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {
    /**
     * 正常访问
     * @param id
     * @return
     */
    public String paymentInfo_OK(Integer id){
        return "线程池: "+Thread.currentThread().getName()+"paymentInfo_OK,id:"+id;
    }

    /**
     * 服务降级处理
     * @param id
     * @return
     */
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            //设置服务调用峰值时间
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value="3000")
    })
    public String paymentInfo_TimeOut(Integer id){
//        int a = 10/0;
        try {
            TimeUnit.SECONDS.sleep(5);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池: "+Thread.currentThread().getName()+"paymentInfo_TimeOut,id"+id;
    }
    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池: "+Thread.currentThread().getName()+"paymentInfo_TimeOutHandler,id"+id+"000000";
    }
        /**
         * 服务熔断
         */
        //=====服务熔断
        @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
                @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),// 是否开启断路器
                @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),// 请求次数
                @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), // 时间窗口期
                @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),// 失败率达到多少后跳闸
        })
        public String paymentCircuitBreaker(@PathVariable("id") Integer id)
        {
            if(id < 0)
            {
                throw new RuntimeException("******id 不能负数");
            }
            String serialNumber = IdUtil.simpleUUID();

            return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
        }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id)
    {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }
}
